Textbender app
Textbender is an Android app which lets you shuffle text from various sources to various sources. In more concrete terms, it lets you do things like turn all text on your screen into buttons you can press to open them in a dictionary like Yomichan or Pleco.
The most notable feature is the ability to retrieve any text on the screen visible to the accessibility API. You can also access text from other sources; another commonly used one might be via the context menu. You can also do things like integrate Textbender with your Anki notes to open a word in Yomichan.